An official website of the United States government
Here's how you know
Official websites use .mil
website belongs to an official U.S. Department of Defense organization in the United States.
Secure .mil websites use HTTPS
means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.
Skip to main content (Press Enter).
Mission & Vision
Naval Oceanographic Office
Fleet Numerical Meteorology & Oceanography Center
United States Naval Observatory
News from the Naval Observatory
Earth Orientation Department
USNO Earth Orientation Products
Contents of Bulletin A
USNO GPS Products
GPS User Information
USNO VLBI-based Products
VLBI Correlator Data
VLBI-based Earth Orientation Parameters (EOP)
Earth Orientation Information Center
General Information about Earth Orientation
Frequently Asked Questions About Earth Orientation
What Is Earth Orientation?
What Is Polar Motion?
What does the Earth rotation coordinate measure?
What is the Celestial Pole Offset?
What is a Leap Second?
How do we measure Earth Orientation?
What causes variations in the Earth's orientation?
Who uses Earth orientation information?
Publications About Earth Orientation Products
Earth Orientation Software
Precise Time Department
The USNO Master Clock
The USNO Master Clock
Time Dissemination at the USNO
USNO Alternate Master Clock (AMC)
Cesium Atomic Clocks
Hydrogen Masers at the USNO
Rubidium Fountain Clocks
USNO Time Scales
International Time Scales and the BIPM
Definitions of Systems of Time
Global Positioning System
Global Positioning System Overview
USNO GPS Data Categories Explanation
CGGTTS Data Format
USNO GPS Time Transfer
GPS Information: SA, DGPS, Leap Seconds, etc.
GPS Week Number Rollover
GPS Timing Data and Information
USNO Format Explanation
USNO Computer Display Clocks
Two-Way Satellite Time Transfer (TWSTT)
Network Time Protocol (NTP)
US Eastern Time Zone NTP Servers
US Mountain Time Zone Servers
DoD Customer Servers
Astronomical Applications Department
Celestial Reference Frame Department
Senior Enlisted Advisor
Naval Oceanography Operations Command
Fleet Weather Center - Norfolk
Fleet Weather Center - San Diego
Joint Typhoon Warning Center
Public Use of Limitations
Naval Meteorology and Oceanography Command
Lieutenant Commander Geoffry R. Eberle
EXECUTIVE OFFICER, Naval Oceanography Special Warfare Center
15 June 2022
Lieutenant Commander Geoffry Eberle is a native of Davenport, Iowa. He graduated in 2009 from Western Illinois University with a Bachelor of Science in Meteorology and commissioned through the Officer Candidate School in November of 2009. He graduated from the Naval Postgraduate School in 2016 with a Master of Science in Meteorology and Physical Oceanography. He also holds a Master of Science in Exercise Science from American Military University and graduate certificates in AntiSubmarine Warfare, Systems Engineering, and Space Systems Operations from Naval Postgraduate School.
At sea, he served as the Main Propulsion Division Officer and the First Lieutenant aboard USS Cape St. George (CG 71). As an oceanographer, he served as Naval Oceanography Antisubmarine Warfare Team Lead supporting Destroyer Squadron (DESRON) Twenty-One embarked aboard USS John C. Stennis (CVN 74) supporting OPERTION ENDURING FREEDOM, and DESRON Thirty. He also served as Meteorology and Oceanography Officer, Assistant Operations Officer, Officer of the Deck underway, Tactical Action Officer, and Command Duty Officer for USS Wasp (LHD 1) in support of two homeport shifts and five Forward Deployed Naval Forces (FDNF) patrols.
His shore tours include service as Flag Aide for the Oceanographer and Navigator of the Navy (OPNAV N2/N6E), Fleet Operations Department Head and Command Duty Officer, Naval Oceanography Antisubmarine Warfare Center Stennis Space Center, Mississippi, and Training and Readiness Department Head, Fleet Weather Center Norfolk, Virginia. LCDR Eberle reported as the Executive Officer, Naval Oceanography Special Warfare Center, San Diego, California in April 2022. He is also dual hatted as the Force Oceanography for Commander, Naval Special Warfare Command.
LCDR Eberle is a qualified Surface Warfare Officer and Information Warfare Officer. His personal awards include the Navy and Marine Corps Commendation Medal (three awards), and the Navy and Marine Corps Achievement Medal (three awards) and various unit, campaign and service awards which are a reflection of the men and women with whom he served.
Naval Oceanography Special Warfare Center
DoD Accessibility/Section 508
No Fear Act
Plain Writing Act
Veterans Crisis Line
DoD Safe Helpline
Commander, Naval Meteorology and Oceanography Command | 1100 Balch Blvd. | Stennis Space Center, Mississippi 39529
Official U.S. Navy Website